Kconfig 12 KB

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  1. #
  2. # ACPI Configuration
  3. #
  4. menu "ACPI (Advanced Configuration and Power Interface) Support"
  5. depends on !X86_VISWS
  6. depends on !IA64_HP_SIM
  7. depends on IA64 || X86
  8. config ACPI
  9. bool "ACPI Support"
  10. depends on IA64 || X86
  11. depends on PCI
  12. select PM
  13. default y
  14. ---help---
  15. Advanced Configuration and Power Interface (ACPI) support for
  16. Linux requires an ACPI compliant platform (hardware/firmware),
  17. and assumes the presence of OS-directed configuration and power
  18. management (OSPM) software. This option will enlarge your
  19. kernel by about 70K.
  20. Linux ACPI provides a robust functional replacement for several
  21. legacy configuration and power management interfaces, including
  22. the Plug-and-Play BIOS specification (PnP BIOS), the
  23. MultiProcessor Specification (MPS), and the Advanced Power
  24. Management (APM) specification. If both ACPI and APM support
  25. are configured, whichever is loaded first shall be used.
  26. The ACPI SourceForge project contains the latest source code,
  27. documentation, tools, mailing list subscription, and other
  28. information. This project is available at:
  29. <http://sourceforge.net/projects/acpi>
  30. Linux support for ACPI is based on Intel Corporation's ACPI
  31. Component Architecture (ACPI CA). For more information see:
  32. <http://developer.intel.com/technology/iapc/acpi>
  33. ACPI is an open industry specification co-developed by Compaq,
  34. Intel, Microsoft, Phoenix, and Toshiba. The specification is
  35. available at:
  36. <http://www.acpi.info>
  37. if ACPI
  38. config ACPI_SLEEP
  39. bool "Sleep States"
  40. depends on X86 && (!SMP || SUSPEND_SMP)
  41. depends on PM
  42. default y
  43. ---help---
  44. This option adds support for ACPI suspend states.
  45. With this option, you will be able to put the system "to sleep".
  46. Sleep states are low power states for the system and devices. All
  47. of the system operating state is saved to either memory or disk
  48. (depending on the state), to allow the system to resume operation
  49. quickly at your request.
  50. Although this option sounds really nifty, barely any of the device
  51. drivers have been converted to the new driver model and hence few
  52. have proper power management support.
  53. This option is not recommended for anyone except those doing driver
  54. power management development.
  55. config ACPI_SLEEP_PROC_FS
  56. bool
  57. depends on ACPI_SLEEP && PROC_FS
  58. default y
  59. config ACPI_SLEEP_PROC_SLEEP
  60. bool "/proc/acpi/sleep (deprecated)"
  61. depends on ACPI_SLEEP_PROC_FS
  62. default n
  63. ---help---
  64. Create /proc/acpi/sleep
  65. Deprecated by /sys/power/state
  66. config ACPI_PROCFS
  67. bool "Procfs interface (deprecated)"
  68. depends on ACPI
  69. default y
  70. ---help---
  71. Procfs interface for ACPI is made optional for back-compatible.
  72. As the same functions are duplicated in sysfs interface
  73. and this proc interface will be removed some time later,
  74. it's marked as deprecated.
  75. ( /proc/acpi/debug_layer && debug_level are deprecated by
  76. /sys/module/acpi/parameters/debug_layer && debug_level. )
  77. config ACPI_AC
  78. tristate "AC Adapter"
  79. depends on X86
  80. default y
  81. help
  82. This driver adds support for the AC Adapter object, which indicates
  83. whether a system is on AC, or not. If you have a system that can
  84. switch between A/C and battery, say Y.
  85. config ACPI_BATTERY
  86. tristate "Battery"
  87. depends on X86
  88. default y
  89. help
  90. This driver adds support for battery information through
  91. /proc/acpi/battery. If you have a mobile system with a battery,
  92. say Y.
  93. config ACPI_BUTTON
  94. tristate "Button"
  95. default y
  96. help
  97. This driver handles events on the power, sleep and lid buttons.
  98. A daemon reads /proc/acpi/event and perform user-defined actions
  99. such as shutting down the system. This is necessary for
  100. software controlled poweroff.
  101. config ACPI_VIDEO
  102. tristate "Video"
  103. depends on X86
  104. help
  105. This driver implement the ACPI Extensions For Display Adapters
  106. for integrated graphics devices on motherboard, as specified in
  107. ACPI 2.0 Specification, Appendix B, allowing to perform some basic
  108. control like defining the video POST device, retrieving EDID information
  109. or to setup a video output, etc.
  110. Note that this is an ref. implementation only. It may or may not work
  111. for your integrated video device.
  112. config ACPI_HOTKEY
  113. tristate "Generic Hotkey (EXPERIMENTAL)"
  114. depends on EXPERIMENTAL
  115. depends on X86
  116. default n
  117. help
  118. Experimental consolidated hotkey driver.
  119. If you are unsure, say N.
  120. config ACPI_FAN
  121. tristate "Fan"
  122. default y
  123. help
  124. This driver adds support for ACPI fan devices, allowing user-mode
  125. applications to perform basic fan control (on, off, status).
  126. config ACPI_DOCK
  127. tristate "Dock"
  128. depends on EXPERIMENTAL
  129. help
  130. This driver adds support for ACPI controlled docking stations
  131. config ACPI_PROCESSOR
  132. tristate "Processor"
  133. default y
  134. help
  135. This driver installs ACPI as the idle handler for Linux, and uses
  136. ACPI C2 and C3 processor states to save power, on systems that
  137. support it. It is required by several flavors of cpufreq
  138. Performance-state drivers.
  139. config ACPI_HOTPLUG_CPU
  140. bool
  141. depends on ACPI_PROCESSOR && HOTPLUG_CPU
  142. select ACPI_CONTAINER
  143. default y
  144. config ACPI_THERMAL
  145. tristate "Thermal Zone"
  146. depends on ACPI_PROCESSOR
  147. default y
  148. help
  149. This driver adds support for ACPI thermal zones. Most mobile and
  150. some desktop systems support ACPI thermal zones. It is HIGHLY
  151. recommended that this option be enabled, as your processor(s)
  152. may be damaged without it.
  153. config ACPI_NUMA
  154. bool "NUMA support"
  155. depends on NUMA
  156. depends on (X86 || IA64)
  157. default y if IA64_GENERIC || IA64_SGI_SN2
  158. config ACPI_ASUS
  159. tristate "ASUS/Medion Laptop Extras"
  160. depends on X86
  161. ---help---
  162. This driver provides support for extra features of ACPI-compatible
  163. ASUS laptops. As some of Medion laptops are made by ASUS, it may also
  164. support some Medion laptops (such as 9675 for example). It makes all
  165. the extra buttons generate standard ACPI events that go through
  166. /proc/acpi/events, and (on some models) adds support for changing the
  167. display brightness and output, switching the LCD backlight on and off,
  168. and most importantly, allows you to blink those fancy LEDs intended
  169. for reporting mail and wireless status.
  170. Note: display switching code is currently considered EXPERIMENTAL,
  171. toying with these values may even lock your machine.
  172. All settings are changed via /proc/acpi/asus directory entries. Owner
  173. and group for these entries can be set with asus_uid and asus_gid
  174. parameters.
  175. More information and a userspace daemon for handling the extra buttons
  176. at <http://sourceforge.net/projects/acpi4asus/>.
  177. If you have an ACPI-compatible ASUS laptop, say Y or M here. This
  178. driver is still under development, so if your laptop is unsupported or
  179. something works not quite as expected, please use the mailing list
  180. available on the above page (acpi4asus-user@lists.sourceforge.net)
  181. config ACPI_IBM
  182. tristate "IBM ThinkPad Laptop Extras"
  183. depends on X86
  184. ---help---
  185. This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
  186. support for Fn-Fx key combinations, Bluetooth control, video
  187. output switching, ThinkLight control, UltraBay eject and more.
  188. For more information about this driver see <file:Documentation/ibm-acpi.txt>
  189. and <http://ibm-acpi.sf.net/> .
  190. If you have an IBM ThinkPad laptop, say Y or M here.
  191. config ACPI_IBM_DOCK
  192. bool "Legacy Docking Station Support"
  193. depends on ACPI_IBM
  194. depends on ACPI_DOCK=n
  195. default n
  196. ---help---
  197. Allows the ibm_acpi driver to handle docking station events.
  198. This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI. It will
  199. allow locking and removing the laptop from the docking station,
  200. but will not properly connect PCI devices.
  201. If you are not sure, say N here.
  202. config ACPI_TOSHIBA
  203. tristate "Toshiba Laptop Extras"
  204. depends on X86
  205. ---help---
  206. This driver adds support for access to certain system settings
  207. on "legacy free" Toshiba laptops. These laptops can be recognized by
  208. their lack of a BIOS setup menu and APM support.
  209. On these machines, all system configuration is handled through the
  210. ACPI. This driver is required for access to controls not covered
  211. by the general ACPI drivers, such as LCD brightness, video output,
  212. etc.
  213. This driver differs from the non-ACPI Toshiba laptop driver (located
  214. under "Processor type and features") in several aspects.
  215. Configuration is accessed by reading and writing text files in the
  216. /proc tree instead of by program interface to /dev. Furthermore, no
  217. power management functions are exposed, as those are handled by the
  218. general ACPI drivers.
  219. More information about this driver is available at
  220. <http://memebeam.org/toys/ToshibaAcpiDriver>.
  221. If you have a legacy free Toshiba laptop (such as the Libretto L1
  222. series), say Y.
  223. config ACPI_CUSTOM_DSDT
  224. bool "Include Custom DSDT"
  225. depends on !STANDALONE
  226. default n
  227. help
  228. This option is to load a custom ACPI DSDT
  229. If you don't know what that is, say N.
  230. config ACPI_CUSTOM_DSDT_FILE
  231. string "Custom DSDT Table file to include"
  232. depends on ACPI_CUSTOM_DSDT
  233. default ""
  234. help
  235. Enter the full path name to the file which includes the AmlCode
  236. declaration.
  237. config ACPI_BLACKLIST_YEAR
  238. int "Disable ACPI for systems before Jan 1st this year" if X86_32
  239. default 0
  240. help
  241. enter a 4-digit year, eg. 2001 to disable ACPI by default
  242. on platforms with DMI BIOS date before January 1st that year.
  243. "acpi=force" can be used to override this mechanism.
  244. Enter 0 to disable this mechanism and allow ACPI to
  245. run by default no matter what the year. (default)
  246. config ACPI_DEBUG
  247. bool "Debug Statements"
  248. default n
  249. help
  250. The ACPI driver can optionally report errors with a great deal
  251. of verbosity. Saying Y enables these statements. This will increase
  252. your kernel size by around 50K.
  253. config ACPI_EC
  254. bool
  255. default y
  256. help
  257. This driver is required on some systems for the proper operation of
  258. the battery and thermal drivers. If you are compiling for a
  259. mobile system, say Y.
  260. config ACPI_POWER
  261. bool
  262. default y
  263. config ACPI_SYSTEM
  264. bool
  265. default y
  266. help
  267. This driver will enable your system to shut down using ACPI, and
  268. dump your ACPI DSDT table using /proc/acpi/dsdt.
  269. config X86_PM_TIMER
  270. bool "Power Management Timer Support" if EMBEDDED
  271. depends on X86
  272. default y
  273. help
  274. The Power Management Timer is available on all ACPI-capable,
  275. in most cases even if ACPI is unusable or blacklisted.
  276. This timing source is not affected by power management features
  277. like aggressive processor idling, throttling, frequency and/or
  278. voltage scaling, unlike the commonly used Time Stamp Counter
  279. (TSC) timing source.
  280. You should nearly always say Y here because many modern
  281. systems require this timer.
  282. config ACPI_CONTAINER
  283. tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
  284. depends on EXPERIMENTAL
  285. default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
  286. ---help---
  287. This allows _physical_ insertion and removal of CPUs and memory.
  288. This can be useful, for example, on NUMA machines that support
  289. ACPI based physical hotplug of nodes, or non-NUMA machines that
  290. support physical cpu/memory hot-plug.
  291. If one selects "m", this driver can be loaded with
  292. "modprobe acpi_container".
  293. config ACPI_HOTPLUG_MEMORY
  294. tristate "Memory Hotplug"
  295. depends on ACPI
  296. depends on MEMORY_HOTPLUG
  297. default n
  298. help
  299. This driver adds supports for ACPI Memory Hotplug. This driver
  300. provides support for fielding notifications on ACPI memory
  301. devices (PNP0C80) which represent memory ranges that may be
  302. onlined or offlined during runtime.
  303. Enabling this driver assumes that your platform hardware
  304. and firmware have support for hot-plugging physical memory. If
  305. your system does not support physically adding or ripping out
  306. memory DIMMs at some platform defined granularity (individually
  307. or as a bank) at runtime, then you need not enable this driver.
  308. If one selects "m," this driver can be loaded using the following
  309. command:
  310. $>modprobe acpi_memhotplug
  311. config ACPI_SBS
  312. tristate "Smart Battery System (EXPERIMENTAL)"
  313. depends on X86 && I2C
  314. depends on EXPERIMENTAL
  315. help
  316. This driver adds support for the Smart Battery System.
  317. Depends on I2C (Device Drivers ---> I2C support)
  318. A "Smart Battery" is quite old and quite rare compared
  319. to today's ACPI "Control Method" battery.
  320. endif # ACPI
  321. endmenu